In 1902, when this photo was taken, the most majestic canyon on earth had not yet been protected as a national park (though President Benjamin Harrison had named it a forest reserve in 1893). It was, relative to later fame, somewhat obscure.

In 1915, a few years removed from his ‘Bull Moose’ run at a third presidential term, Theodore Roosevelt was done governing--but not yet finished enjoying the natural splendor he fought so valiantly to preserve during his time in the White House.